上海国际设计中心脉动测试研究
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摘要
对不等高双塔连体建筑上海国际设计中心进行了结构自振频率和阻尼比的脉动法现场实测,并对实测结果运用SVSA2.0软件进行数据处理分析,最后将分析结果与设计软件分析结果和振动台模型试验结果进行对比。研究发现主塔楼和副塔楼在长轴方向能够较好地共同工作,而在短轴方向协同性较差。脉动法实测自振周期与其他方法分析结果较接近,实测阻尼比小于规范建议值。
The Shanghai International Design Center is a multi-tower building of different heights.Natural periods and damping ratios of the structure were obtained by using ambinent vibration tests.The results from the tests were compared with design values and shaking table tests.Test results show that the two towers can work together on the long axis(X axis) and is unable to work integratedly on the short axis(Y axis).Natural periods from the ambinet vibration test are close to the results of other methods,and damping ratios from the test are smaller than the recommended value in the code.
The Shanghai International Design Center is a multi-tower building of different heights.Natural periods and damping ratios of the structure were obtained by using ambinent vibration tests.The results from the tests were compared with design values and shaking table tests.Test results show that the two towers can work together on the long axis(X axis) and is unable to work integratedly on the short axis(Y axis).Natural periods from the ambinet vibration test are close to the results of other methods,and damping ratios from the test are smaller than the recommended value in the code.
引文
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[2]顾云磊,钱江.复杂连体高层建筑结构抗震性能计算分析研究[J].结构工程师,2011,27(1):85-91.Gu Yunlei,Qian Jiang.Research on seismic performance of a complex high-rise building with connected structure[J].Structural Engineers,2011,27(1):85-91.(in Chinese)
[3]周颖,吕西林.双塔连体高层混合结构抗震性能研究[J].地震工程与工程振动,2008,28(5):71-78.Zhou Ying,Lu Xilin.Seismic performance of multitower hybrid tall building[J].Journal of Earthquake Engineering and Engineering Vibration,2008,28(5):71-78.(in Chinese)
[4]尹超,周颖,吕西林.上海国际设计中心超限高层结构抗震分析[J]结构工程师,2008,24(6):8084.Yin Chao,Zhou Ying,Lu Xilin.Seismic performance evaluation of Shanghai International Design Center:an out-of-codes high-rise building[J].Structural Engineers,2008,24(6):80-84.(in Chinese)
[5]施卫星,魏丹,韩瑞龙.钢结构房屋动力特性脉动法测试研究[J]地震工程与工程振动,2012,32(1):114-120.Shi Weixing,Wei Dan,Han Ruilong.Field tests and reasearch on the dynamic characteristics of steel structure buildings under ambient vibration[J].Journal of Earthquake Engineering and Engineering Vibration,2012,32(1):114-120.(in Chinese)
[6 ]谭高铭,张之颖,吕西林.环境激励下房屋建筑的阻尼比识别[J].工业建筑,2008,38(S):182-184.Tan Gaoming,Zhang Zhiying,Lu Xilin.Study on identification of damping ratio for the building under ambient excitation[J].Industrial Construction,2008,38(S):182-184.(in Chinese)
[7 ]刘杰,康加华,熊海贝.向峨小学现代木结构校舍动力特性现场实测[J].结构工程师,2010,26(3):130-134.Liu Jie,Kang Jiahua,Xiong Haibei.Field test on dynamic characters of wood frame construction in Xiang’e elementary school[J].Structural Engineers,2010,26(3):130-134.(in Chinese)
[8 ]中华人民共和国住房和城乡建设部.JGJ 3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2010.Minstry of Housing and Urban-Rural Development of the People's Republic of China.JGJ 3—2010 Technical specification of concete structures of tall building[S].Beijing:China Architecture and Building Press.2010.(in Chinese)
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